PDF user manual for CopperEdge 150

Ground the CE150 ChassisWhen operating on -48 VDC power, the CE150 chassis must beconnected to a professionally installed Protective Earth, whichis independent of the AC Mains Power Earth.Specific instructions for installation of Protective Earth connectionsare contained in the National Electric Code for the UnitedStates and Canada. The Protective Earth must be installed bya licensed and qualified electrician.Connection of the CE150 chassis to the grounding electrodemust be made in conformance to the local and national regulationsand may only be performed by trained and licensed servicepersonnel. The grounding electrode conductor must besized equivalent to a stranded 12 AWG wire.DC Power ConnectionConnection of the -48 VDC power system to the CE150 is providedby a barrel-type connector, as shown in the previous illustration.To connect the -48 VDC power to the CE150, follow these steps:1. Loosen the screws in the barrel-type terminals, namedJP1, for both the -48 volt line and the return line.2. Insert a red #12 AWG stranded copper wire for the -48volt line into the hole in the bottom of the barrelmarked -48V.3. Connect the other end of the red #12 AWG strandedcopper wire to the -48 VDC power source.4. Insert a black #12 AWG stranded copper wire for the48 volt return connection into the hole in the bottom ofthe barrel marked RTN.5. Connect the other end of the black #12 AWG strandedcopper wire to the 48 VDC power source Returnconnection.6. Tighten both screws so the wires cannot slip out.& $ 8 7 , 2 1Reversing the polarity of the -48 VDC input connections will causedamage to the DC Power Module, requiring its return to the factory forrepair. Never rely on wire color or "logic" when connecting the supplylines. Use an appropriate meter or testing device to verify the polaritybefore connecting the DC Power Sources.&RSSHU(GJH,QVWDOODWLRQDQG2SHUDWLQJ*XLGH